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Metrics stuck / deadlock on some kernel versions #2500

@nevgin

Description

@nevgin

Host operating system: output of uname -a

Linux host 5.4.211-1.el8.elrepo.x86_64 #1 SMP Wed Aug 24 08:50:28 EDT 2022 x86_64 x86_64 x86_64 GNU/Linux

node_exporter version: output of node_exporter --version

node_exporter, version 1.4.0 (branch: HEAD, revision: 7da1321)
build user: root@83d90983e89c
build date: 20220926-12:32:56
go version: go1.19.1
platform: linux/amd64

node_exporter command line flags

--no-collector.cpufreq --no-collector.systemd --collector.sockstat --no-collector.logind --collector.textfile.directory=/var/lib/prometheus

Are you running node_exporter in Docker?

No

What did you do that produced an error?

after 2-24 hour, randomized

What did you expect to see?

Not stuck node_exporter

What did you see instead?

Stuck node exporter after random time.
After run strace -f -p pgrep node_exporter
node exporter unstuck
Out pprof:
debug1.txt
debug2.txt

Responce > 1 minute

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